Leírás
Most HRV (Heart Rate Variability) apps are overly complicated. This one simply measures RMSSD (root mean square of successive differences), the most important and widely used metric, and presents the data in a simple, easy to understand fashion.
Warning: This app is only intended for educational and informational purposes only and is NOT intended for the diagnosis, cure, mitigation, prevention, or treatment of any disease or medical condition.
# Features
* Measures RMSSD in a 5 minute test, with time remaining display
* Vibration alert signals the test completion
* Real-time heart rate display (average HR shown at the end of the test)
* Minimum, average, and maximum beat interval [ms] display
* Beat interval distribution graph display. This can be used to check the quality of the measurement. Assuming you do not have any heart abnormalities, the beat interval distribution graph at the end of the test should ideally be a bell curve normal distribution shape. If it is not, it may indicate that you moved during the test or were mentally interrupted or stressed suddenly during the test. In these cases, you should repeat the test.
# FULL Version Features
* Configurable measurement duration
* Real time update of min, average, and max beat interval display during the test
* Real time update of beat interval distribution graph during the test
* Historical plot of RMSSD (white points and lines) (up to 60 days, assuming one test per day)
* 7 day moving average trend plot of RMSSD (green line)
* Saves the HRV result to the activity session record in Garmin Connect.
# Instructions
1. Pick a time of day when you are most free from physical and mental stressors. (Ideally you should do the test at the same time of the day each time to be able to interpret historical trends. For most people this is just after you wake up in the morning, before eating, exercise, checking your phone, etc.)
2. Ensure that your watch is worn snugly over your wrist.
3. In a seated restful position, start the app and press the [Start] button.
4. Rest and breathe normally until the end of the test, signaled by a vibration from the watch.
5. View the results.
6. In the FULL version, press the [DOWN] button (or on touchscreen models, tap the screen) to see the historical trend graph.
7. In the FULL version, when viewing the historical trend graph, press the [UP] button (or on touchscreen models, tap the screen) to return to the initial test screen.
8. You can press the [START] button to repeat the test.
# NOTES
1. HRV varies depending on multiple factors including age, stress, respiration, physical fitness, heredity etc. As physical fitness is improved, HRV tends to increase. Low HRV can indicate poor vagal tone, meaning that the body is less adaptable to physical and mental stressors that it may encounter.
2. For an explanation on why the first thing in the morning is the best time to do the measurement, see:
https://medium.com/@marco_alt/the-ultimate-guide-to-heart-rate-variability-hrv-part-1-70a0a392fff4
3. For an excellent description on interpreting the results, see:
https://medium.com/@marco_alt/the-ultimate-guide-to-heart-rate-variability-hrv-part-2-323a38213fbc
and also:
https://medium.com/@marco_alt/the-ultimate-guide-to-heart-rate-variability-hrv-part-3-5fe902f3d2b3
4. Because of the multiple factors that influence HRV, most importantly being the state of your mind and body and what is going on at the time, the results of a single measurement can be difficult to interpret, but becomes easier when many measurements are collected over longer periods to be able to identify trends and causes. See the links above for more detail.
# Payment
Please make sure the free version works before attempting to buy the full version.
For the FULL version, use this link to pay US$1.50 via Stripe (no account required; credit card, Apple Pay, Google Pay accepted). https://buy.stripe.com/dR64hVbIo3cxaIM4ju
如需通过微信或支付宝付款,请使用此链接:https://buy.stripe.com/5kA29N8wc14p6sw7w
Újdonságok
Version 0.8.0
Updated SDK. Added diagnostics.
Version 0.7.3
Added support for the D2 Mach 2.
Version 0.7.2
Added support for Venu 4 models.
Version 0.7.1
Added support for the Fenix 8 Pro.
Version 0.7.0
Attempt to fix crash problems. Added support for the Venu X1.
Version 0.6.0
FULL Version only change: Prevented crash on startup on some models. Added setting to enable/disable saving of HRV results to Garmin Connect. Changed activity type for the Garmin Connect record to Generic Sport.
Version 0.5.0
FULL Version only change: Saves HRV result to the activity session record in Garmin Connect.
Version 0.2.6
Added support for Forerunner 570/970 models.
Version 0.2.5
Added support for the Vivoactive 6.
Version 0.2.4
Added support for the Descent G2.
Version 0.2.3
Added support for the Approach S50/S44.
Version 0.2.2
Added support for the Instinct 3 models.
Version 0.2.1
Added support for the Enduro 3 and Fenix 8 series.
Version 0.2.0
Attempt to fix crash occuring on some models.
Version 0.1.7
Added support for Forerunner 165 models.
Version 0.1.6
Added support for the Descent Mk3 43mm models.
Version 0.1.5
Added support for Fenix 7 Pro Solar.
Version 0.1.4
Added support for the Descent Mk3 model.
Version 0.1.3
Added support for Fenix 7X Pro Solar.
Version 0.1.2
Added support for Vivoactive 5.
Version 0.1.1
Added support for Venu 3 series.
Képernyőképek
Támogatott nyelvek (4)
Kompatibilis eszközök (219)
Approach® S50
Approach® S62
Approach® S62
Approach® S70 (42mm)
Approach® S70 (47mm)
Captain Marvel
Captain Marvel
D2™ Air
D2™ Air X10
D2™ Air X15
D2™ Charlie
D2™ Delta
D2™ Delta PX
D2™ Delta PX
D2™ Delta S
D2™ Mach 1
D2™ Mach 1 Pro
D2™ Mach 2
D2™ Mach 2 Pro
Darth Vader™
Darth Vader™
Descent™ G1
Descent™ G1
Descent™ G2
Descent™ Mk1
Descent™ Mk1
Descent™ MK2
Descent™ MK2
Descent™ Mk2S
Descent™ Mk2S
Descent™ MK3 - 43mm
Descent™ MK3i - 51mm
Enduro™
Enduro™
Enduro™ 2
Enduro™ 3
epix™ (Gen 2)
epix™ (Gen 2)
epix™ Pro (42mm)
epix™ Pro (47mm)
epix™ Pro (51mm)
fēnix® 5
fēnix® 5
fēnix® 5 Plus
fēnix® 5 Plus
fēnix® 5S
fēnix® 5S
fēnix® 5S Plus
fēnix® 5S Plus
fēnix® 5X
fēnix® 5X
fēnix® 5X Plus
fēnix® 5X Plus
fēnix® 6
fēnix® 6
fēnix® 6 Dual Power
fēnix® 6 Pro
fēnix® 6 Pro
fēnix® 6 Pro Dual Power
fēnix® 6 Pro Solar
fēnix® 6 Solar
fēnix® 6S
fēnix® 6S
fēnix® 6S Dual Power
fēnix® 6S Pro
fēnix® 6S Pro
fēnix® 6S Pro Dual Power
fēnix® 6S Pro Solar
fēnix® 6S Solar
fēnix® 6X Pro
fēnix® 6X Pro
fēnix® 7
fēnix® 7
fēnix® 7 Pro
fēnix® 7 Pro – Solar Edition (No Wi-Fi®)
fēnix® 7S
fēnix® 7S
fēnix® 7S Pro
fēnix® 7X
fēnix® 7X
fēnix® 7X Pro
fēnix® 7X Pro No Wi-Fi
fēnix® 8 AMOLED (43mm)
fēnix® 8 AMOLED (47mm/51mm)
fēnix® 8 Pro
fēnix® 8 Solar (47mm)
fēnix® 8 Solar (51mm)
fenix® 9 - 43 mm
fenix® 9 – 47 mm
fenix® 9 Pro - 43 mm
fenix® 9 Pro - 47 mm
fenix® 9 Pro - 51 mm
fenix® 9 Pro - Solar 47 mm
fenix® 9 Pro - Solar 51 mm
fēnix® Chronos
fēnix® Chronos
fēnix® E
First Avenger
First Avenger
ForeAthlete 245
ForeAthlete 245 Music
ForeAthlete 55
ForeAthlete 645
ForeAthlete 645 Music
ForeAthlete 745
ForeAthlete 935
Forerunner® 165
Forerunner® 165 Music
Forerunner® 170
Forerunner® 170 Music
Forerunner® 245
Forerunner® 245
Forerunner® 245 Music
Forerunner® 245 Music
Forerunner® 255
Forerunner® 255 Music
Forerunner® 255S
Forerunner® 255S Music
Forerunner® 265
Forerunner® 265S
Forerunner® 55
Forerunner® 55
Forerunner® 570 - 42mm
Forerunner® 570 - 47mm
Forerunner® 645
Forerunner® 645 Music
Forerunner® 70
Forerunner® 70
Forerunner® 745
Forerunner® 935
Forerunner® 945
Forerunner® 945
Forerunner® 945 LTE
Forerunner® 955 Dual Power
Forerunner® 965
Forerunner® 970
Instinct® 2
Instinct® 2
Instinct® 2S
Instinct® 2S
Instinct® 2X
Instinct® 3 – 45 mm, AMOLED
Instinct® 3 – 45 mm, Solar
Instinct® 3 – 50 mm, AMOLED
Instinct® 3 – 50 mm, Solar
Instinct® Crossover
Instinct® E – 40 mm
Instinct® E – 45 mm
MARQ® (Gen 2)
MARQ® Adventurer (Gen 3)
MARQ® Commander (Gen 2) – Carbon Edition
MARQ™ Adventurer
MARQ™ Adventurer
MARQ™ Athlete
MARQ™ Athlete
MARQ™ Aviator
MARQ™ Aviator
MARQ™ Aviator (Gen 2)
MARQ™ Captain
MARQ™ Captain
MARQ™ Commander
MARQ™ Commander
MARQ™ Driver
MARQ™ Driver
MARQ™ Expedition
MARQ™ Expedition
MARQ™ Golfer
MARQ™ Golfer
Mercedes-Benz Venu®
Mercedes-Benz Venu®
Mercedes-Benz Venu® 2
Mercedes-Benz Venu® 2
Mercedes-Benz Venu® 2S
Mercedes-Benz Venu® 2S
quatix® 6
quatix® 6X
Rey™
Rey™
tactix® 7
tactix® 7 – AMOLED Edition
tactix® 8 – 47 mm, AMOLED
tactix® 8 – 51 mm, Solar
Venu®
Venu®
Venu® 2
Venu® 2
Venu® 2 Plus
Venu® 2 Plus
Venu® 2S
Venu® 2S
Venu® 3
Venu® 3S
Venu® 4 – 41 mm
Venu® 4 – 45 mm
Venu® Sq.
Venu® Sq.
Venu® Sq.
Venu® Sq.
Venu® Sq. 2
Venu® Sq. 2 Music
Venu® Sq. Music
Venu® Sq. Music
Venu® Sq. Music
Venu® Sq. Music
Venu® X1
vívoactive® 3
vívoactive® 3
vívoactive® 3
vívoactive® 3 Mercedes-Benz® Collection
vívoactive® 3 Mercedes-Benz® Collection
vívoactive® 3 Music
vívoactive® 3 Music
vívoactive® 3 Music
vívoactive® 4
vívoactive® 4
vívoactive® 4S
vívoactive® 4S
vívoactive® 5
vívoactive® 6
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Vélemények
Pillanatkép-dátumok
2026-10-27 → 2026-11-04